esp_adc_cal: move esp_adc_cal_get_voltage into common source file

components/esp_adc_cal/CMakeLists.txt

@@ -1,7 +1,12 @@
 idf_build_get_property(target IDF_TARGET)
 
-set(srcs "esp_adc_cal_${target}.c")
+set(srcs "esp_adc_cal_common.c")
+set(src_target "esp_adc_cal_${target}.c")
+if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/${src_target}")
+    list(APPEND srcs ${src_target})
+endif()
 
 idf_component_register(SRCS ${srcs}
                        INCLUDE_DIRS include
-                       REQUIRES driver efuse)
+                       REQUIRES driver
+                       PRIV_REQUIRES efuse)

components/esp_adc_cal/esp_adc_cal_common.c

@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include "esp_types.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "esp_check.h"
+#include "driver/adc.h"
+#include "hal/adc_types.h"
+#include "esp_adc_cal.h"
+
+const static char *TAG = "ADC_CALI";
+
+esp_err_t esp_adc_cal_get_voltage(adc_channel_t channel,
+                                  const esp_adc_cal_characteristics_t *chars,
+                                  uint32_t *voltage)
+{
+    // Check parameters
+    ESP_RETURN_ON_FALSE(chars != NULL, ESP_ERR_INVALID_ARG, TAG, "No characteristic input");
+    ESP_RETURN_ON_FALSE(voltage != NULL, ESP_ERR_INVALID_ARG, TAG, "No output buffer");
+
+    esp_err_t ret = ESP_OK;
+    int adc_reading;
+    if (chars->adc_num == ADC_UNIT_1) {
+        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(0), ESP_ERR_INVALID_ARG, TAG, "Invalid channel");
+        adc_reading = adc1_get_raw(channel);
+    } else {
+        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(1), ESP_ERR_INVALID_ARG, TAG, "Invalid channel");
+        ret = adc2_get_raw(channel, chars->bit_width, &adc_reading);
+    }
+    *voltage = esp_adc_cal_raw_to_voltage((uint32_t)adc_reading, chars);
+    return ret;
+}

components/esp_adc_cal/esp_adc_cal_esp32.c

@@ -1,16 +1,8 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include <stdint.h>
 #include "esp_types.h"
@@ -83,8 +75,6 @@
 #define LUT_HIGH_THRESH                 (LUT_LOW_THRESH + LUT_ADC_STEP_SIZE)
 #define ADC_12_BIT_RES                  4096
 
-const static char LOG_TAG[] = "ADC_CALI";
-
 /* ------------------------ Characterization Constants ---------------------- */
 static const uint32_t adc1_tp_atten_scale[4] = {65504, 86975, 120389, 224310};
 static const uint32_t adc2_tp_atten_scale[4] = {65467, 86861, 120416, 224708};
@@ -363,26 +353,3 @@ uint32_t esp_adc_cal_raw_to_voltage(uint32_t adc_reading, const esp_adc_cal_char
         return calculate_voltage_linear(adc_reading, chars->coeff_a, chars->coeff_b);
     }
 }
-
-esp_err_t esp_adc_cal_get_voltage(adc_channel_t channel,
-                                  const esp_adc_cal_characteristics_t *chars,
-                                  uint32_t *voltage)
-{
-    //Check parameters
-    ESP_RETURN_ON_FALSE(chars != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No characteristic input");
-    ESP_RETURN_ON_FALSE(voltage != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No output buffer");
-
-    esp_err_t ret = ESP_OK;
-    int adc_reading;
-    if (chars->adc_num == ADC_UNIT_1) {
-        //Check channel is valid on ADC1
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(0), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        adc_reading = adc1_get_raw(channel);
-    } else {
-        //Check channel is valid on ADC2
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(1), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        ret = adc2_get_raw(channel, chars->bit_width, &adc_reading);
-    }
-    *voltage = esp_adc_cal_raw_to_voltage((uint32_t)adc_reading, chars);
-    return ret;
-}

components/esp_adc_cal/esp_adc_cal_esp32c3.c

@@ -1,16 +1,8 @@
-// Copyright 2019-2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -136,26 +128,3 @@ uint32_t esp_adc_cal_raw_to_voltage(uint32_t adc_reading, const esp_adc_cal_char
     assert(chars != NULL);
     return adc_reading * chars->coeff_a / coeff_a_scaling + chars->coeff_b / coeff_b_scaling;
 }
-
-esp_err_t esp_adc_cal_get_voltage(adc_channel_t channel,
-                                  const esp_adc_cal_characteristics_t *chars,
-                                  uint32_t *voltage)
-{
-    // Check parameters
-    ESP_RETURN_ON_FALSE(chars != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No characteristic input");
-    ESP_RETURN_ON_FALSE(voltage != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No output buffer");
-
-    esp_err_t ret = ESP_OK;
-    int adc_reading;
-    if (chars->adc_num == ADC_UNIT_1) {
-        //Check if channel is valid on ADC1
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(0), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        adc_reading = adc1_get_raw(channel);
-    } else {
-        //Check if channel is valid on ADC2
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(1), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        ret = adc2_get_raw(channel, chars->bit_width, &adc_reading);
-    }
-    *voltage = esp_adc_cal_raw_to_voltage((uint32_t)adc_reading, chars);
-    return ret;
-}

components/esp_adc_cal/esp_adc_cal_esp32h2.c

@@ -1,16 +1,8 @@
-// Copyright 2019-2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -144,27 +136,3 @@ uint32_t esp_adc_cal_raw_to_voltage(uint32_t adc_reading, const esp_adc_cal_char
 
     return adc_reading * chars->coeff_a / coeff_a_scaling + chars->coeff_b / coeff_b_scaling;
 }
-
-esp_err_t esp_adc_cal_get_voltage(adc_channel_t channel,
-                                  const esp_adc_cal_characteristics_t *chars,
-                                  uint32_t *voltage)
-{
-    // Check parameters
-    ADC_CALIB_CHECK(chars != NULL, "No characteristic input.", ESP_ERR_INVALID_ARG);
-    ADC_CALIB_CHECK(voltage != NULL, "No output buffer.", ESP_ERR_INVALID_ARG);
-
-    int adc_reading;
-    if (chars->adc_num == ADC_UNIT_1) {
-        //Check if channel is valid on ADC1
-        ADC_CALIB_CHECK((adc1_channel_t)channel < ADC1_CHANNEL_MAX, "Invalid channel", ESP_ERR_INVALID_ARG);
-        adc_reading = adc1_get_raw(channel);
-    } else {
-        //Check if channel is valid on ADC2
-        ADC_CALIB_CHECK((adc2_channel_t)channel < ADC2_CHANNEL_MAX, "Invalid channel", ESP_ERR_INVALID_ARG);
-        if (adc2_get_raw(channel, chars->bit_width, &adc_reading) != ESP_OK) {
-            return ESP_ERR_TIMEOUT;     //Timed out waiting for ADC2
-        }
-    }
-    *voltage = esp_adc_cal_raw_to_voltage((uint32_t)adc_reading, chars);
-    return ESP_OK;
-}

components/esp_adc_cal/esp_adc_cal_esp32s2.c

@@ -1,16 +1,8 @@
-// Copyright 2019-2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include <stdint.h>
 #include "esp_types.h"
@@ -206,26 +198,3 @@ uint32_t esp_adc_cal_raw_to_voltage(uint32_t adc_reading, const esp_adc_cal_char
     assert(chars != NULL);
     return adc_reading * chars->coeff_a / coeff_a_scaling + chars->coeff_b / coeff_b_scaling;
 }
-
-esp_err_t esp_adc_cal_get_voltage(adc_channel_t channel,
-                                  const esp_adc_cal_characteristics_t *chars,
-                                  uint32_t *voltage)
-{
-    // Check parameters
-    ESP_RETURN_ON_FALSE(chars != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No characteristic input");
-    ESP_RETURN_ON_FALSE(voltage != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No output buffer");
-
-    esp_err_t ret = ESP_OK;
-    int adc_reading;
-    if (chars->adc_num == ADC_UNIT_1) {
-        //Check if channel is valid on ADC1
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(0), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        adc_reading = adc1_get_raw(channel);
-    } else {
-        //Check if channel is valid on ADC2
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(1), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        ret = adc2_get_raw(channel, chars->bit_width, &adc_reading);
-    }
-    *voltage = esp_adc_cal_raw_to_voltage((uint32_t)adc_reading, chars);
-    return ret;
-}

components/esp_adc_cal/esp_adc_cal_esp32s3.c

@@ -214,24 +214,3 @@ uint32_t esp_adc_cal_raw_to_voltage(uint32_t adc_reading, const esp_adc_cal_char
 
     return voltage;
 }
-
-esp_err_t esp_adc_cal_get_voltage(adc_channel_t channel,
-                                  const esp_adc_cal_characteristics_t *chars,
-                                  uint32_t *voltage)
-{
-    // Check parameters
-    ESP_RETURN_ON_FALSE(chars != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No characteristic input");
-    ESP_RETURN_ON_FALSE(voltage != NULL, ESP_ERR_INVALID_ARG, LOG_TAG, "No output buffer");
-
-    esp_err_t ret = ESP_OK;
-    int adc_reading;
-    if (chars->adc_num == ADC_UNIT_1) {
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(0), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        adc_reading = adc1_get_raw(channel);
-    } else {
-        ESP_RETURN_ON_FALSE(channel < SOC_ADC_CHANNEL_NUM(1), ESP_ERR_INVALID_ARG, LOG_TAG, "Invalid channel");
-        ret = adc2_get_raw(channel, chars->bit_width, &adc_reading);
-    }
-    *voltage = esp_adc_cal_raw_to_voltage((uint32_t)adc_reading, chars);
-    return ret;
-}

components/esp_adc_cal/include/esp_adc_cal.h

@@ -1,16 +1,8 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #ifndef __ESP_ADC_CAL_H__
 #define __ESP_ADC_CAL_H__

tools/ci/check_copyright_ignore.txt

@@ -563,11 +563,6 @@ components/esp32/include/rom/spi_flash.h
 components/esp32/include/rom/tbconsole.h
 components/esp32/include/rom/tjpgd.h
 components/esp32/include/rom/uart.h
-components/esp_adc_cal/esp_adc_cal_esp32.c
-components/esp_adc_cal/esp_adc_cal_esp32c3.c
-components/esp_adc_cal/esp_adc_cal_esp32h2.c
-components/esp_adc_cal/esp_adc_cal_esp32s2.c
-components/esp_adc_cal/include/esp_adc_cal.h
 components/esp_common/include/esp_assert.h
 components/esp_common/include/esp_bit_defs.h
 components/esp_common/include/esp_check.h